Most of these things are related to Forumotion and their issues, and they happen on and off at random. If refreshing the page or switching to another browser doesn't work, you normally just have to play the waiting game for the forum to get back to normal. I remember mid November this was a huge issue on my end, and it was images like avatars or the images used for the highlights on the main page-staff, events, shining star selections and featured roleplay-that were appearing as broken images. It was super weird. XD